Debian dla-4019 : busybox - security update

critical Nessus Plugin ID 214387

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Synopsis

The remote Debian host is missing one or more security-related updates.

Description

The remote Debian 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-4019 advisory.

------------------------------------------------------------------------- Debian LTS Advisory DLA-4019-1 [email protected] https://www.debian.org/lts/security/ Tobias Frost January 19, 2025 https://wiki.debian.org/LTS
-------------------------------------------------------------------------

Package : busybox Version : 1:1.30.1-6+deb11u1 CVE ID : CVE-2021-28831 CVE-2021-42374 CVE-2021-42378 CVE-2021-42379 CVE-2021-42380 CVE-2021-42381 CVE-2021-42382 CVE-2021-42384 CVE-2021-42385 CVE-2021-42386 CVE-2022-48174 CVE-2023-42364 CVE-2023-42365 Debian Bug : 985674 999567 1059049 1059051 1059052

Multiple vulnerabilities have been found in BusyBox, a lightweight single-executable containing various Unix utilities, which potentially allow attackers to cause denial of service, information leakage, or arbitrary code execution through malformed gzip data, crafted LZMA input or crafted awk patterns.

CVE-2021-28831

decompress_gunzip.c in BusyBox through 1.32.1 mishandles the error bit on the huft_build result pointer, with a resultant invalid free or segmentation fault, via malformed gzip data.

CVE-2021-42374

An out-of-bounds heap read in Busybox's unlzma applet leads to information leak and denial of service when crafted LZMA-compressed input is decompressed. This can be triggered by any applet/format that

CVE-2021-42378

A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when processing a crafted awk pattern in the getvar_i function

CVE-2021-42379

A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when processing a crafted awk pattern in the next_input_file function

CVE-2021-42380

A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when processing a crafted awk pattern in the clrvar function

CVE-2021-42381

A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when processing a crafted awk pattern in the hash_init function

CVE-2021-42382

use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when processing a crafted awk pattern in the getvar_s function

CVE-2021-42384

A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when processing a crafted awk pattern in the handle_special function

CVE-2021-42385

A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when processing a crafted awk pattern in the evaluate function

CVE-2021-42386

A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when processing a crafted awk pattern in the nvalloc function

CVE-2022-48174

There is a stack overflow vulnerability in ash.c:6030 in busybox before 1.35. In the environment of Internet of Vehicles, this vulnerability can be executed from command to arbitrary code execution.

CVE-2023-42364

A use-after-free vulnerability in BusyBox v.1.36.1 allows attackers to cause a denial of service via a crafted awk pattern in the awk.c evaluate function.

CVE-2023-42365

A use-after-free vulnerability was discovered in BusyBox v.1.36.1 via a crafted awk pattern in the awk.c copyvar function.

For Debian 11 bullseye, these problems have been fixed in version 1:1.30.1-6+deb11u1.

We recommend that you upgrade your busybox packages.

For the detailed security status of busybox please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/busybox

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS Attachment:
signature.asc Description: PGP signature

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade the busybox packages.

Plugin Details

Severity: Critical

ID: 214387

File Name: debian_DLA-4019.nasl

Version: 1.1

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 1/19/2025

Updated: 1/19/2025

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.1

Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:P

CVSS Score Source: CVE-2021-42386

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

CVSS Score Source: CVE-2022-48174

CVSS v4

Risk Factor: Critical

Base Score: 9.3

Threat Score: 8.9

Threat Vector: CVSS:4.0/E:P

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS Score Source: CVE-2021-28831

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:busybox-udeb, cpe:/o:debian:debian_linux:11.0, p-cpe:/a:debian:debian_linux:udhcpc, p-cpe:/a:debian:debian_linux:busybox, p-cpe:/a:debian:debian_linux:busybox-syslogd, p-cpe:/a:debian:debian_linux:busybox-static, p-cpe:/a:debian:debian_linux:udhcpd

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 1/19/2025

Vulnerability Publication Date: 3/19/2021

Reference Information

CVE: CVE-2021-28831, CVE-2021-42374, CVE-2021-42378, CVE-2021-42379, CVE-2021-42380, CVE-2021-42381, CVE-2021-42382, CVE-2021-42384, CVE-2021-42385, CVE-2021-42386, CVE-2022-48174, CVE-2023-42364, CVE-2023-42365

Detections

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